package mytool;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

@WebServlet(name = "CheckDuplicateAccount", urlPatterns = {"/CheckDuplicateAccount.servlet"})
public class CheckDuplicateAccount extends HttpServlet {

    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        response.setContentType("text/html;charset=UTF-8");
        PrintWriter out = response.getWriter();
        try {
            /* TODO output your page here. You may use following sample code. */
            out.println("<!DOCTYPE html>");
            out.println("<html>");
            out.println("<head>");
            out.println("<title>Servlet CheckDuplicateAccount</title>");
            out.println("</head>");
            out.println("<body>");
            out.println("<h1>Servlet CheckDuplicateAccount at " + request.getContextPath() + "</h1>");
            out.println("</body>");
            out.println("</html>");
        } finally {
            out.close();
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /**
     * Handles the HTTP <code>GET</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        //processRequest(request, response);
        response.setContentType("text/html; charset=UTF-8");        
        PrintWriter out = response.getWriter();
        String acct = request.getParameter("acct");
        try {
            NWDB.NWDB mydb = new NWDB.NWDB();
            NWDB.ImplMember im = new NWDB.ImplMember(mydb.getConnection());
            mydb.setIMember(im);

            boolean ans = mydb.CheckAccountDuplicate(acct);
            
            if (ans){
                out.append("<span style='color:red; font-weight: bold;'>帳號已被使用！</span>");
                out.close();
            }                
            else{
                out.append("<span style='color:cyan; font-weight: bold;'>帳號可以使用</span>");
                out.close();
            }
        } catch (Exception e) {
            
        }                

    }

    /**
     * Handles the HTTP <code>POST</code> method.
     *
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /**
     * Returns a short description of the servlet.
     *
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>

}
